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Strip unindented comment blocks - mainly headers to avoid conflicts.
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The issue was happening with fast Gaussian blur, and caused by NaN value pixels
in the input buffer.
Now made it so Map Range output does not produce NaN, by returning arbitrary
value of 0. Still better than NaN!
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in SocketReader.
Distinguish the 3 different methods for acquiring pixel color values (executePixel, executePixelSampled, executePixelFiltered).
This makes it easier to keep track of the different sampling methods (and works nicer with IDEs that do code parsing).
Differential Revision: http://developer.blender.org/D7
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Think should be pretty much harmless since if this node was used for buffers
with infinities it already showed artifacts. Now it should be more useful for
mapping Z buffers.
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presence of markers still hangs.
also compiler warnings and some style edits.
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(useful for flipping the values inside the node)
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this node allows for more control for normalization of the mapped input range.
Made during BlenderPRO 2012 - Brasilia, Brazil :)
Idea and testing: Daniel Salazar
Implementation: yours truly
Reviewed by Lukas Toenne and Sergey Sharybin
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